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d4dec05036
eventually be merged with the sparc backend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4286 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.7 KiB
C++
65 lines
2.7 KiB
C++
//===-- llvm/CodeGen/MBasicBlock.h - Machine Specific BB rep ----*- C++ -*-===//
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//
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// This class provides a way to represent a basic block in a machine-specific
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// form. A basic block is represented as a list of machine specific
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// instructions.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CODEGEN_MBASICBLOCK_H
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#define CODEGEN_MBASICBLOCK_H
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#include "llvm/CodeGen/MInstruction.h"
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#include "Support/ilist"
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class MBasicBlock {
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MBasicBlock *Prev, *Next;
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iplist<MInstruction> InstList;
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// FIXME: we should maintain a pointer to the function we are embedded into!
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public:
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MBasicBlock() {}
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// Provide accessors for the MBasicBlock list...
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typedef iplist<MInstruction> InstListType;
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typedef InstListType::iterator iterator;
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typedef InstListType::const_iterator const_iterator;
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typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
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typedef std::reverse_iterator<iterator> reverse_iterator;
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//===--------------------------------------------------------------------===//
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/// Instruction iterator methods
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///
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inline iterator begin() { return InstList.begin(); }
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inline const_iterator begin() const { return InstList.begin(); }
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inline iterator end () { return InstList.end(); }
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inline const_iterator end () const { return InstList.end(); }
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inline reverse_iterator rbegin() { return InstList.rbegin(); }
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inline const_reverse_iterator rbegin() const { return InstList.rbegin(); }
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inline reverse_iterator rend () { return InstList.rend(); }
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inline const_reverse_iterator rend () const { return InstList.rend(); }
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inline unsigned size() const { return InstList.size(); }
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inline bool empty() const { return InstList.empty(); }
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inline const MInstruction &front() const { return InstList.front(); }
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inline MInstruction &front() { return InstList.front(); }
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inline const MInstruction &back() const { return InstList.back(); }
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inline MInstruction &back() { return InstList.back(); }
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/// getInstList() - Return the underlying instruction list container. You
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/// need to access it directly if you want to modify it currently.
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///
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const InstListType &getInstList() const { return InstList; }
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InstListType &getInstList() { return InstList; }
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private: // Methods used to maintain doubly linked list of blocks...
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friend class ilist_traits<MBasicBlock>;
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MBasicBlock *getPrev() const { return Prev; }
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MBasicBlock *getNext() const { return Next; }
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void setPrev(MBasicBlock *P) { Prev = P; }
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void setNext(MBasicBlock *N) { Next = N; }
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};
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#endif
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